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The Robot's Revenge is the 123rd book in The Hardy Boys series. It was first published in December 1993 by Minstrel Books (an imprint of Simon & Schuster).
Plot summary[]
While attending the Teen Inventors Club competition in Chicago, Frank and Joe Hardy discover that someone is trying to sabotage Roger the Lobber, an automatic tennis ball retrieval and return unit.
Appearances[]
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Characters[]
Locations[]
to be added.
Businesses and organizations[]
to be added.
Other[]
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References[]
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